Answer:
44 years old
Step-by-step explanation:
22 + 15x = 577....with x being the number of years
15x = 577 - 22
15x = 555
x = 555/15
x = 37......so in 37 years he will have them...and that would make Clark's age be (37 + 7) = 44 <===
Answer:
Step By Step Explanation:
- Subtract 1 From Both Sides
- Multiply Both Sides By -1 (Reverse Inequality)
Step 1:
<span>Calculate the effective thermal conductivity of the wall or ceiling:
</span>
K_eff = [ (13 ÷ 8)(0.12) + (16 - (13 ÷ 8)) × (0.04)] ÷ 16
K_eff =<span> [ 0.195 + 0.565] </span>÷<span> 16
</span>
K_eff = 0.76 ÷ 16
K_eff = 0.0475 W/ (m K)
Step 2:
Calculate <span>the interior ceiling area:
</span>Area of each of the interior side walls = <span>8.82 m x 8.64 m
= 76.2 m</span>²
Area of the interior ceiling = 8.64 m × <span>8.64 m
</span> = 74.6 m²
H = - k·A·(Δ - T) ÷ <span>(thickness)
</span>
H = - 0.0475 ÷ (379.45 × 20) ÷ 45/8
H = - ( - 0.95 × 379.45 ) ÷<span> 0.1429
</span>
H = <span>2.52 kW </span>
Ok use a calculator and do 11 x 11 x 4 then 7 x 7 x 4 and add the products